Home / 12,600.74-18,902.85-5,580.20

Finding the Fourth Proportional to 12,600.74, 18,902.85 and 5,580.20

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Solution

The fourth proportional to 12,600.74, 18,902.85 and 5,580.20 is: 8,371.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,600.74 : 18,902.85 = 5,580.20 : x
  2. Step 2: Convert to fraction form
    12,600.74/18,902.85 = 5,580.20/x
  3. Step 3: Cross multiply
    12,600.74x = 18,902.85 × 5,580.20
  4. Step 4: Simplify right side
    12,600.74x = 105,481,589.06
  5. Step 5: Solve for x
    x = 105,481,589.06/12,600.74
  6. Step 6: Final answer
    x = 8,371.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.